R34 — Anuria and oliguria

R34

ICD-10 Chapter 18: Symptoms, Signs & Abnormal Findings — illustrative image — Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00–R99) — illustrative image

What this code means

Anuria and oliguria mean absent or very low urine production, an important sign of kidney problems.

Also called: anuria, oliguria, low urine output.

When this code is used

Used for anuria and oliguria.

Where it sits in ICD-10-CM

Code R34 belongs to Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified, which covers codes R00–R99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Related symptoms

Passing very little urine

Related anatomy

Kidneys

Frequently asked questions

What is ICD-10-CM code R34?

R34 is the ICD-10-CM diagnosis code for “Anuria and oliguria”. Anuria and oliguria mean absent or very low urine production, an important sign of kidney problems.

When is code R34 used?

Used for anuria and oliguria. It belongs to Chapter 18 of ICD-10-CM (Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified).

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.